Chief and High-up

Chief noun - The main or greater part of something as distinguished from its subordinate parts.

High-up and chief are semantically related In some cases you can use "High-up" instead the word "Chief" as a noun or an adjective.

Nearby Word: chiefly

High-up noun - An important or influential (and often overbearing) person.

Chief and high-up are semantically related in important topic. Sometimes you can use "Chief" instead the phrase "High-up" as a noun or an adjective.